This probably won't come as a surprise to anyone, but Mark Prior has been released:
The San Diego Padres have released right-hander Mark Prior, whose once-promising career has been interrupted by two shoulder surgeries since April 2007. Prior had signed a minor league contract with the Padres in January. General manager Kevin Towers said the Padres didn't see enough progress with Prior's rehab to believe he could help the big league club this season.
People are saying much the same thing about Stephen Strasburg now. Sure, we probably know more about such things in 2009 than we did in 2002, but not so much that we can say that young pitchers are anything short of a crapshoot.